Cov txheej txheem tseem ceeb ntawm kev tshem tawm cov cuab yeej yog raws li hauv qab no:
(1) Pub thiab tshem tawm cov cuab yeej ncaj qha raws z-axis kev taw qhia ntawm kev sib koom ua ke axis
(2) Pub lossis thim lub cuab yeej raws li qhov kev taw qhia vector
(3) Pub los yog tshem tawm cov cuab yeej nyob rau hauv ib txoj kab ncaj nraim raws tangent kev taw qhia ntawm qhov chaw
(4) Pub lossis thim rov qab raws li qhov kev taw qhia ntawm qhov chaw
(5) Pub lossis thim rov qab raws li kev taw qhia ntawm ntu arc
(6) Pub hom raws helix lossis oblique kab
Rau lub machining ntawm profile nto nrog siab machining raug qhov yuav tsum tau, hom kev pub noj thiab retreating raws tangent vector taw qhia ntawm qhov chaw los yog raws arc kev taw qhia yuav tsum tau xaiv, thiaj li hais tias lub cuab tam nres kab yuav tsis nyob rau hauv lub noj los yog retreating. txoj hauj lwm ntawm lub workpiece, uas yuav cuam tshuam rau saum npoo machining zoo ntawm lub workpiece.
